RADIO SYSTEM INCLUDING FET MIXER DEVICE AND SQUARE-WAVE DRIVE SWITCHING CIRCUIT AND METHOD THEREFOR - Patent 0972336

(19)

(11)

EP 0 972 336 A1

(12)

(43)	Date of publication:
	19.01.2000 Bulletin 2000/03

(21)	Application number: 99905547.8

(22)	Date of filing: 29.01.1999

(51)	International Patent Classification (IPC)⁷: H03D 7/12

(86)	International application number:
	PCT/US9901/986

(87)	International publication number:
	WO 9939/431 (05.08.1999 Gazette 1999/31)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30)

Priority:

01.02.1998 US 16629

(71)	Applicant: Watkins-Johnson Company
	Gaithersburg, MD 20878-1794 (US)

(72)	Inventors:
	VICE, Michael, Wendell El Granada, CA 94018 (US) DEXTER, Charles, Edward Highland, MD 20777 (US)

(74)	Representative: McLeish, Nicholas Alistair Maxwell et al
	Boult Wade Tennant27 Furnival Street London EC4A 1PQ London EC4A 1PQ (GB)

(54)	RADIO SYSTEM INCLUDING FET MIXER DEVICE AND SQUARE-WAVE DRIVE SWITCHING CIRCUIT AND METHOD THEREFOR